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java.sql.SQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 2 times. Giving up.

at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:110)

at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)

at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:89)

at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:63)

at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:73)

at com.mysql.cj.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:902)

at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:827)

at com.mysql.cj.jdbc.ConnectionImpl.(ConnectionImpl.java:456)

at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:240)

at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:207)

at java.sql.DriverManager.getConnection(DriverManager.java:664)

at java.sql.DriverManager.getConnection(DriverManager.java:247)

at MysqlTestDemo.MysqlTest.main(MysqlTest.java:16)

Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)

at java.lang.reflect.Constructor.newInstance(Constructor.java:423)

at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)

at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)

at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)

at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)

at com.mysql.cj.protocol.a.NativeProtocol.negotiateSSLConnection(NativeProtocol.java:351)

at com.mysql.cj.protocol.a.NativeAuthenticationProvider.negotiateSSLConnection(NativeAuthenticationProvider.java:796)

at com.mysql.cj.protocol.a.NativeAuthenticationProvider.proceedHandshakeWithPluggableAuthentication(NativeAuthenticationProvider.java:503)

at com.mysql.cj.protocol.a.NativeAuthenticationProvider.connect(NativeAuthenticationProvider.java:220)

at com.mysql.cj.protocol.a.NativeProtocol.connect(NativeProtocol.java:1443)

at com.mysql.cj.NativeSession.connect(NativeSession.java:165)

at com.mysql.cj.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:846)

... 7 more

Caused by: javax.net.ssl.SSLHandshakeException: java.security.cert.CertificateException: java.security.cert.CertPathValidatorException: Path does not chain with any of the trust anchors

at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)

at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1964)

at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:328)

at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:322)

at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1614)

at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216)

at sun.security.ssl.Handshaker.processLoop(Handshaker.java:1052)

at sun.security.ssl.Handshaker.process_record(Handshaker.java:987)

at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1072)

at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1385)

at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1413)

at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1397)

at com.mysql.cj.protocol.ExportControlled.performTlsHandshake(ExportControlled.java:315)

at com.mysql.cj.protocol.StandardSocketFactory.performTlsHandshake(StandardSocketFactory.java:206)

at com.mysql.cj.protocol.a.NativeSocketConnection.performTlsHandshake(NativeSocketConnection.java:99)

at com.mysql.cj.protocol.a.NativeProtocol.negotiateSSLConnection(NativeProtocol.java:347)

... 13 more

Caused by: java.security.cert.CertificateException: java.security.cert.CertPathValidatorException: Path does not chain with any of the trust anchors

at com.mysql.cj.protocol.ExportControlled$X509TrustManagerWrapper.checkServerTrusted(ExportControlled.java:379)

at sun.security.ssl.AbstractTrustManagerWrapper.checkServerTrusted(SSLContextImpl.java:992)

at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1596)

... 24 more

Caused by: java.security.cert.CertPathValidatorException: Path does not chain with any of the trust anchors

at sun.security.provider.certpath.PKIXCertPathValidator.validate(PKIXCertPathValidator.java:154)

at sun.security.provider.certpath.PKIXCertPathValidator.engineValidate(PKIXCertPathValidator.java:80)

at java.security.cert.CertPathValidator.validate(CertPathValidator.java:292)

at com.mysql.cj.protocol.ExportControlled$X509TrustManagerWrapper.checkServerTrusted(ExportControlled.java:372)

... 26 more

Exception in thread "main" java.lang.NullPointerException

null

at MysqlTestDemo.MysqlTest.main(MysqlTest.java:22)

Process finished with exit code 1